Yttrium

Source: http://www.tabulka.cz/english/elements/show.asp?id=39

name Yttrium
latin Yttrium
french Yttrium
german Yttrium
symbol Y
proton number 39
atomic weight 88.90585
Pauling electronegativity 1.22
electronic configuration [Kr] 4d15s2
1s22s22p63s23p63d104s24p64d15s2
melting point 1799 K, 1526°C, 2779°F
boiling point 3609 K, 3336°C, 6037°F
group 3
period 5
state (by 20°C) solid
oxidation states +3

Discoverer

Year of discovery Discoverer
1794 Johann Gadolin (1760-1852)


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